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Define Serializable schedule
Serializable schedule: An interleaved schedule of much more than one transaction is known as a serializable schedule, if it is equal to some serial schedule of those transactions.
non numeric literals
#Use the following database schema: 1) Patient—PatientID, Name, DOB 2) Doctor—DoctorID, Name, MedLicenseNumber, Phone 3) Medication—MedicationID, BrandName, GenericName 4) Prescrip
Can a domain, assigned to a data element be changed? Yes. We can do so by just overwriting the entry in the field domain.
Explain Two phase locking protocol A transaction is consider as to follow the two-phase locking protocol if all locking operations precede the first unlock operation in the tra
Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
What are the two types of errors? The two types of errors are: a) Logical error b) System error
can you resolve this for me please? Database Management Systems Homework 1 The following relations are given (primary keys are underlined): PLAY-ACTOR(AId, Name, Nationality, Birt
What is schema
How many types of users works on database? Users are differentiated through the way they expect to interact along with the system (i) Application programmers-interact with
In which relational modes, cardinality is termed? Answer : Cardinality is termed in a number of tuples relational modes.
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